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545 vs 550 18 of 19 identical Swap Change panels

AE Solar AE MD-144BD-545 vs AE Solar AE MD-144BD-550

AE Solar AE MD-144BD-545
AE MD-144BD-545
545 Wp 21.12 % PERC Bifacial
Open panel page Datasheet PDF
VS
AE Solar AE MD-144BD-550
AE MD-144BD-550
550 Wp 21.31 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

One difference, none of them an advantage

The largest is open-circuit voltage: 1.43 V apart. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 545 550 Difference
Open-circuit voltage 50.01 V 51.44 V 1.43 V apart
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
545
17,565 kWh
550
17,726 kWh
Lifetime gap
161 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 545 550
Standard test conditions 25 °C 100.0% of rated power 545 W 550 W
Cool, bright day 40 °C 94.8% of rated power 516 W 521 W
Typical summer roof 55 °C 89.5% of rated power 488 W 492 W
Hot roof 70 °C 84.2% of rated power 459 W 463 W
03

Full specification

Parameter 545 550 Difference
Power and efficiency
Rated power 545 Wp 550 Wp Effectively the same
Module efficiency 21.12 % 21.31 % Effectively the same
Power density 211.2 Wp/m² 213.1 Wp/m² Effectively the same
Open-circuit voltage 50.01 V 51.44 V 1.43 V apart
Voltage at max power 42.38 V 42.57 V Effectively the same
Short-circuit current 13.62 A 13.67 A Effectively the same
Current at max power 12.86 A 12.92 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 2278x1133x30 mm 2278x1133x30 mm Same
Module area 2.581 m² 2.581 m² Same
Weight 31.0 kg 31.0 kg Same
Weight per kWp 56.9 kg/kWp 56.4 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#9,255 vs #8,503
550 leads by 752 places
Power density
#9,256 vs #8,474
550 leads by 782 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#10,914 vs #10,606
550 leads by 308 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,729 vs #6,280
550 leads by 449 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar MD-144BS-550
4 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar MD-144BS-550W
3 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar MD-144BS-545
3 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar MD-144BS-545W
2 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar MD-144BS-540
4 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-545 vs AE Solar AE MD-144BD-540
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar AE MD-144BD-545 or AE Solar AE MD-144BD-550?
According to our database: AE Solar AE MD-144BD-550 has higher module efficiency (21.31% vs 21.12%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar AE MD-144BD-545 and AE Solar AE MD-144BD-550?
AE Solar AE MD-144BD-545 has a module efficiency of 21.12%, while AE Solar AE MD-144BD-550 is 21.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar AE MD-144BD-545 use vs AE Solar AE MD-144BD-550?
AE Solar AE MD-144BD-545 uses PERC cells; AE Solar AE MD-144BD-550 uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on AE Solar AE MD-144BD-545 and AE Solar AE MD-144BD-550?
AE Solar AE MD-144BD-545 has a 30 years power warranty; AE Solar AE MD-144BD-550 has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are AE Solar AE MD-144BD-545 and AE Solar AE MD-144BD-550 bifacial panels?
Both AE Solar AE MD-144BD-545 and AE Solar AE MD-144BD-550 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: See 5 AE Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.